func (config *TierConfigMgr) Add(ctx context.Context, tier madmin.TierConfig, ignoreInUse bool) error {
	config.Lock()
	defer config.Unlock()

	// check if tier name is in all caps
	tierName := tier.Name
	if tierName != strings.ToUpper(tierName) {
		return errTierNameNotUppercase
	}

	// check if tier name already in use
	if _, exists := config.isTierNameInUse(tierName); exists {

	buf := make([]byte, 1024)
	b.Write(buf[0:1])
	var cap0 int
	for i := 0; i < 5<<10; i++ {
		b.Write(buf)
		b.Read(buf)
		if i == 0 {
			cap0 = b.Cap()
		}
	}
	cap1 := b.Cap()
	// (*Buffer).grow allows for 2x capacity slop before sliding,
	// so set our error threshold at 3x.
	if cap1 > cap0*3 {
		t.Errorf("buffer cap = %d; too big (grew from %d)", cap1, cap0)
	}
}

	"fmt"
	"net"
	"strings"

	"sigs.k8s.io/yaml"

	"istio.io/istio/pkg/maps"
	"istio.io/istio/pkg/slices"
)

type ConnectionsFilter struct {
	Namespace string
	Direction string
	Raw       bool
}

func (c *ConfigWriter) PrintConnectionsDump(filter ConnectionsFilter, outputFormat string) error {
	d := c.ztunnelDump
	workloads := maps.Values(d.WorkloadState)

	"github.com/dustin/go-humanize"
	"github.com/minio/minio-go/v7/pkg/s3utils"
	"github.com/minio/minio-go/v7/pkg/set"
	"github.com/minio/minio/internal/grid"
	xnet "github.com/minio/pkg/v2/net"
	"golang.org/x/exp/maps"
	"golang.org/x/exp/slices"

	"github.com/minio/minio/internal/amztime"
	"github.com/minio/minio/internal/config/dns"
	"github.com/minio/minio/internal/crypto"
	xhttp "github.com/minio/minio/internal/http"

	switch op {
	case arm64.AVTBL, arm64.AVTBX, arm64.AVMOVQ:
		return true
	}
	return false
}

// IsARM64CASP reports whether the op (as defined by an arm64.A*
// constant) is one of the CASP-like instructions, and its 2nd
// destination is a register pair that require special handling.
func IsARM64CASP(op obj.As) bool {
	switch op {
	case arm64.ACASPD, arm64.ACASPW:
		return true
	}
	return false

	if f.RoundTripper == nil {
		f.RoundTripper = http.DefaultTransport
	}

	return f
}

type bufPool struct {
	sz   int
	pool sync.Pool
}

func (b *bufPool) Put(buf []byte) {
	if cap(buf) < b.sz || cap(buf) > b.sz*2 {
		// Buffer too small or will likely leak memory after being expanded.
		// Drop it.
		return
	}
	b.pool.Put(&buf)
}

func (b *bufPool) Get() []byte {
	bufp := b.pool.Get().(*[]byte)

	writeSuccessResponseXML(w, encodedSuccessResponse)
}

// AssumeRoleWithCertificate implements user authentication with client certificates.
// It verifies the client-provided X.509 certificate, maps the certificate to an S3 policy
// and returns temp. S3 credentials to the client.
//
// API endpoint: https://minio:9000?Action=AssumeRoleWithCertificate&Version=2011-06-15

func anonymizeHost(hostAnonymizer map[string]string, endpoint Endpoint, poolNum int, srvrNum int) {
	if len(endpoint.Host) == 0 {
		return
	}

	currentURL := endpoint.String()

	// mapIfNotPresent - Maps the given key to the value only if the key is not present in the map
	mapIfNotPresent := func(m map[string]string, key string, val string) {
		_, found := m[key]
		if !found {
			m[key] = val
		}
	}

var PutByteBuffer = func(b []byte) {
	if cap(b) >= biggerBufMin && cap(b) < biggerBufMax {
		internal32KByteBuffer.Put(&b)
		return
	}
	if cap(b) >= minBufferSize && cap(b) < biggerBufMin {
		internalByteBuffer.Put(&b)
		return
	}
}

// readAllInto reads from r and appends to b until an error or EOF and returns the data it read.

func (b *Buffer) Len() int { return len(b.buf) - b.off }

// Cap returns the capacity of the buffer's underlying byte slice, that is, the
// total space allocated for the buffer's data.
func (b *Buffer) Cap() int { return cap(b.buf) }

// Available returns how many bytes are unused in the buffer.
func (b *Buffer) Available() int { return cap(b.buf) - len(b.buf) }